SLA
conceptsService Level Agreement — a contract between a service provider and customer defining the expected level of service, including uptime guarantees and response times
Pronunciation
Correct
S-L-A
/ɛs ɛl eɪ/
Three individual letters, each spelled out. Stands for 'Service Level Agreement'. Always an initialism, never pronounced as a word.
Source: sre.google(official spec)